New-Tech Europe | Sep 2017 | Digital Edition

new products

Intersil Introduces High-Speed RS-485 Transceivers with Highest Reinforced Isolation Intersil, a subsidiary of Renesas Electronics Corporation (TSE: 6723), today announced two new high-speed, isolated RS-485 differential bus transceivers that provide 40Mbps bidirectional data communication for Industrial Internet of Things (IIoT) networks. The ISL32741E offers 1,000VRMS working voltage and 6kV of reinforced isolation, more than 2x higher than competitive solutions. The higher working voltage and reinforced isolation is required for today’s most rigorous medical and high- speed motor control applications. The ISL32740E with 2.5kV of isolation and 600VRMS working voltage comes in the industry’s smallest package, enabling high channel density for programmable logic controllers (PLCs) in factory automation applications. The ISL3274xE transceivers provide additional advantages over other isolation technologies, including ultra-low radiated emission and EMI susceptibility, support for up to 160 devices on the bus, and an extended 125°C temperature range. These devices leverage giant magnetoresistance (GMR) technology that provides galvanic isolation to keep the communication bus free from common-mode noise generated in electrically noisy factory and building automation environments. In addition, Intersil’s GMR isolation does not require the elaborate encoding schemes found in capacitive and transformer-based isolators that use RF carriers or pulse-width modulation (PWM) to transfer DC and low frequency signals across the barrier. The ISL3274xE transceivers are ideally suited for the equipment-to-bus interface in PROFIBUS DP and high-speed RS-485 networks that connect PLCs to instruments, robots, motor control drives, as well as data acquisition and digital I/O modules. In addition to not requiring any shielding, these transceivers simplify PCB layout, use less board space, and enhance data transmission reliability and integrity. The ISL3274xE devices also offer low power consumption. For example, the ISL32740EIAZ’s 60mA supply current allows it to operate in a tiny 4mm x 5mmQSOP package at maximum speed without overheating. On the non-isolated control-side, the ISL3274xE transceivers support direct connection to a 3V microcontroller(MCU)whiletheisolatedbus-sideconnects

savings over similar aluminum devices. TE’s DEUTSCH group created one of the original composites in 1990, and its ACT series shells are not only very lightweight, they are also highly resistant to corrosion, withstanding 2000 hours of salt spray, and very durable, surviving 1,500 mating cycles. ACT series circular connectors are among the most versatile and popular circular mil spec input/output connectors in the world. They are available in three shell styles, two plating options, six shell clockings, over 50 different insert arrangements supporting size 23, 22D, 20, 16, 12, 10, and 8 contacts for power and signal, as well as coax and twinax contacts. Originally designed as military and aerospace components, ACT series connectors are now also used in many other hi-rel applications where extreme reliability is paramount. They feature a scoop-proof design for fast, easy, secure mating, and a triple-lead, threaded self-locking coupling for excellent vibration resistance. Devices are environmentally-sealed and feature grounding fingers and a trapezoidal thread which provides excellent shell-to-shell continuity, to help support high EMC performance. Comments Alec Sluce, Aerco’s Connector Product Manager: “These lightweight, rugged, environmentally- sealed connectors survive some of the harshest environments of commercial and military aerospace, ground defence, and marine applications. TE’s DEUTSCH composite connectors have led the field in composite connectors for many years, and this latest generation ACT series reinforces their reputation for high quality, extreme reliability and ease-of-use.”

DEUTSCH, TE and TE Connectivity are trademarks of the TE Connectivity family of companies.

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